National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

26°F

-3°C

Humidity 53%
Wind Speed Vrbl 3 mph
Barometer 30.19 in (1024.1 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 4 Jan 10:51 am CST
Extended Forecast for

Round Lake Park IL

  • Today

    Today: Increasing clouds, with a high near 30. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 30 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A slight chance of freezing rain before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 27. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Freezing Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 41. West southwest wind 5 to 10 mph.

    High: 41 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. South wind around 5 mph becoming calm.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain. Mostly cloudy, with a high near 44. South southeast wind around 5 mph becoming west in the afternoon. Winds could gust as high as 10 mph.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain after noon. Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

Today
Increasing clouds, with a high near 30. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
A slight chance of freezing rain before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 27. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
Mostly cloudy, with a high near 41. West southwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 33. South wind around 5 mph becoming calm.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 44. South southeast wind around 5 mph becoming west in the afternoon. Winds could gust as high as 10 mph.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A chance of rain after noon. Partly sunny, with a high near 49.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 34.
Friday
A chance of rain. Mostly cloudy, with a high near 42.
Friday Night
A chance of rain. Mostly cloudy, with a low around 29.
Saturday
Mostly cloudy, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Park IL
 42.33°N 88.05°W
Last Update:
9:56 am CST Jan 4, 2026
Forecast Valid:
11am CST Jan 4, 2026-6pm CST Jan 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation